package c3.example02;
class Student2 {
    String name;
    int age;
    void read () {
        System.out.println("大家好，我是"+name+",年龄"+age);
    }
}
public class example02 {
    public static void main(String[] args) {
        Student2 stu1 = new Student2();
        Student2 stu2 = null;
        stu2 = stu1;
        stu1.name="阿辉";
        stu1.age= 20;
        stu2.age=50;
        stu1.read();
        stu2.read();
    }
}
